OK, I made a design on my computer using a Waltograph font that I downloaded for free off the internet. Is it legal for me to have t-shirts printed with my design for my family's next trip? I would have to purchase the shirts from the printer, but there will only be 10 of them made and will only be for us. The design has a Mickey head on it. Can I do this and wear the shirts to Disney without them getting upset with me?